Nipple



FIG. 1 is a perspective view of a nipple for an infant's feeding bottle, the bottle shown in phantom outline for illustrative purposes only and forming no part of the claimed design;

FIG. 2 is a perspective view of the invention;

FIG. 3 is a left-side elevational view, the right-side elevational view being a mirror image thereof;

FIG. 4 is a front elevational view of the invention, the rear elevational view being a mirror image thereof;

FIG. 5 is a bottom plan view of the invention; and,

FIG. 6 is a top plan view of the invention. 

CLAIM The ornamental design for nipple, as shown and described. 